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	hartrees
Energy at 0K	-10366.214964
Energy at 298.15K
HF Energy	-10365.195297
Nuclear repulsion energy	1481.695657

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1618	1526	12.02
2	A_g	277	261	78.27
3	A_g	150	142	78.89
4	A_u	57	54	78.92
5	B_1u	658	621	13.55
6	B_1u	195	184	58.05
7	B_2g	492	464	12.12
8	B_2u	805	759	13.07
9	B_2u	122	115	68.88
10	B_3g	916	864	12.31
11	B_3g	216	204	69.91
12	B_3u	251	237	12.76

Atom	y (Å)	z (Å)
C1	0.000	0.670
C2	0.000	-0.670
Br3	1.580	1.688
Br4	-1.580	1.688
Br5	-1.580	-1.688
Br6	1.580	-1.688

	C1	C2	Br3	Br4	Br5	Br6
C1		1.3396	1.8801	1.8801	2.8388	2.8388
C2	1.3396		2.8388	2.8388	1.8801	1.8801
Br3	1.8801	2.8388		3.1604	4.6251	3.3769
Br4	1.8801	2.8388	3.1604		3.3769	4.6251
Br5	2.8388	1.8801	4.6251	3.3769		3.1604
Br6	2.8388	1.8801	3.3769	4.6251	3.1604

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	Br5	122.807	C1	C2	Br6	122.807
C2	C1	Br3	122.807	C2	C1	Br4	122.807
Br3	C1	Br4	114.387	Br5	C2	Br6	114.387

All results from a given calculation for C₂Br₄ (tetrabromoethene)

using model chemistry: CCSD/6-311+G(3df,2p)

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C2Br4 (tetrabromoethene)

using model chemistry: CCSD/6-311+G(3df,2p)

States and conformations

All results from a given calculation for C₂Br₄ (tetrabromoethene)